Good innit.
Fins are spot on. There seems to be at least two versions of the finning on the bevels. Some have the centre three fins raised quite tall at the crankcase end, others are just like your model.
I'd so love to get stuck into this project, but business is booming at the moment and spare time has evaporated! I'm not complaining about that as it will suddenly dry up one day, but all work and no play makes Gazza a frustrated boy!